public bool AddSource(XReference sourceReference)
{
if (_sourceToReference.ContainsKey(sourceReference))
{
return(false);
}
_referenceIndex = GetValidReferenceIndex(_referenceIndex + 1);
_sourceToReference.Add(sourceReference, _referenceIndex);
_referenceToSource.Add(_referenceIndex, sourceReference);
return(true);
}
public long RemoveSource(XReference sourceReference)
{
long referenceId = -1;
bool found = _sourceToReference.TryGetValue(sourceReference, out referenceId);
if (found)
{
_sourceToReference.Remove(sourceReference);
_referenceToSource.Remove(referenceId);
}
return(referenceId);
}
public long GetFirstReferenceId(long startingIndex, out long requestId)
{
long referenceId = -1;
long tries = 0;
requestId = -1;
while (_referenceToSource.Count > 0) //if there are any items in the dictionary, we'll stop at the first entry we find.
{
referenceId = GetValidReferenceIndex(startingIndex + tries);
XReference sourceReference = new XReference(requestId);
if (_referenceToSource.TryGetValue(referenceId, out sourceReference))
{
requestId = sourceReference.SourceId;
break;
}
tries++;
}
return(referenceId);
}